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- Alexis_Thérèse_Petit abstract "Alexis Thérèse Petit (2 October 1791, Vesoul, Haute-Saône – 21 June 1820 in Paris) was a French physicist.Petit is known for his work on the efficiencies of air- and steam-engines, published in 1818 (\"Mémoire sur l’emploi du principe des forces vives dans le calcul des machines\"). His well-known discussions with the French physicist Sadi Carnot, founder of thermodynamics, may have stimulated Carnot in his reflexions on heat engines and thermodynamic efficiency. Petit was born in Vesoul, Haute-Saône. At the age of 10, he proved that he was already capable of taking the difficult entrance exam to France's most prestigious scientific school of the time, the École Polytechnique of Paris. He was then placed in a preparatory school where he actually served as a \"répétiteur\" to help his own classmates digest the course material. He duly entered Polytechnique at the lowest permissible age, in 1807, and graduated \"hors-rang\" in 1809 (which is to say that he clearly outranked all of his classmates). After graduation, Petit stayed at Polytechnique as a faculty member, first as \"répétiteur\" in.Analysis and Mechanics (1809) then in Physics (1810). He taught for some time at Lycée Bonaparte. At Polytechnique, he served as a substitute (1814) for Hassenfratz whom he would replace in 1815. He thus became the second professor of physics at Polytechnique and the youngest person ever to hold that position, at the age of 23.Petit and François Arago were brothers-in-law because they married two sisters. In 1814, the two men collaborated on a paper entitled \"Mémoire sur les variations que le pouvoir réfringent d’une même substance éprouve par l’effet gradué de la chaleur\".Petit first collaborated with Pierre Louis Dulong for the competition of the Académie des sciences about refrigeration (1815). Petit is now probably best known for the surprising Dulong-Petit law concerning the specific heat capacity of metals, which both men formulated together in 1819. Petit also designed a special thermometer (using weights) to determine the thermal dilatation coefficients of several metals.Petit died from tuberculosis at the age of 29, shortly after the passing of his wife. He was succeeded by Dulong as professor of physics at Polytechnique (1820).".
- Alexis_Thérèse_Petit wikiPageID "144242".
- Alexis_Thérèse_Petit wikiPageLength "3291".
- Alexis_Thérèse_Petit wikiPageOutDegree "27".
- Alexis_Thérèse_Petit wikiPageRevisionID "702598471".
- Alexis_Thérèse_Petit wikiPageWikiLink Category:1791_births.
- Alexis_Thérèse_Petit wikiPageWikiLink Category:1820_deaths.
- Alexis_Thérèse_Petit wikiPageWikiLink Category:French_physicists.
- Alexis_Thérèse_Petit wikiPageWikiLink Category:People_from_Vesoul.
- Alexis_Thérèse_Petit wikiPageWikiLink Category:Thermodynamicists.
- Alexis_Thérèse_Petit wikiPageWikiLink Category:École_Polytechnique_alumni.
- Alexis_Thérèse_Petit wikiPageWikiLink Dulong–Petit_law.
- Alexis_Thérèse_Petit wikiPageWikiLink France.
- Alexis_Thérèse_Petit wikiPageWikiLink François_Arago.
- Alexis_Thérèse_Petit wikiPageWikiLink French_Academy_of_Sciences.
- Alexis_Thérèse_Petit wikiPageWikiLink Haute-Saône.
- Alexis_Thérèse_Petit wikiPageWikiLink Heat_capacity.
- Alexis_Thérèse_Petit wikiPageWikiLink Heat_engine.
- Alexis_Thérèse_Petit wikiPageWikiLink Jean_Henri_Hassenfratz.
- Alexis_Thérèse_Petit wikiPageWikiLink Metal.
- Alexis_Thérèse_Petit wikiPageWikiLink Nicolas_Léonard_Sadi_Carnot.
- Alexis_Thérèse_Petit wikiPageWikiLink Paris.
- Alexis_Thérèse_Petit wikiPageWikiLink Physicist.
- Alexis_Thérèse_Petit wikiPageWikiLink Pierre_Louis_Dulong.
- Alexis_Thérèse_Petit wikiPageWikiLink Thermal_efficiency.
- Alexis_Thérèse_Petit wikiPageWikiLink Thermodynamics.
- Alexis_Thérèse_Petit wikiPageWikiLink Vesoul.
- Alexis_Thérèse_Petit wikiPageWikiLink École_Polytechnique.
- Alexis_Thérèse_Petit wikiPageWikiLinkText "Alexis Petit".
- Alexis_Thérèse_Petit wikiPageWikiLinkText "Alexis T. Petit".
- Alexis_Thérèse_Petit wikiPageWikiLinkText "Alexis Thérèse Petit".
- Alexis_Thérèse_Petit wikiPageWikiLinkText "Petit".
- Alexis_Thérèse_Petit wikiPageWikiLinkText "Petit, Alexis Therese".
- Alexis_Thérèse_Petit wikiPageUsesTemplate Template:Authority_control.
- Alexis_Thérèse_Petit wikiPageUsesTemplate Template:No_footnotes.
- Alexis_Thérèse_Petit subject Category:1791_births.
- Alexis_Thérèse_Petit subject Category:1820_deaths.
- Alexis_Thérèse_Petit subject Category:French_physicists.
- Alexis_Thérèse_Petit subject Category:People_from_Vesoul.
- Alexis_Thérèse_Petit subject Category:Thermodynamicists.
- Alexis_Thérèse_Petit subject Category:École_Polytechnique_alumni.
- Alexis_Thérèse_Petit hypernym Petit.
- Alexis_Thérèse_Petit type Scientist.
- Alexis_Thérèse_Petit type Diacritic.
- Alexis_Thérèse_Petit type Redirect.
- Alexis_Thérèse_Petit type Scientist.
- Alexis_Thérèse_Petit type Thermodynamic.
- Alexis_Thérèse_Petit type Thing.
- Alexis_Thérèse_Petit comment "Alexis Thérèse Petit (2 October 1791, Vesoul, Haute-Saône – 21 June 1820 in Paris) was a French physicist.Petit is known for his work on the efficiencies of air- and steam-engines, published in 1818 (\"Mémoire sur l’emploi du principe des forces vives dans le calcul des machines\"). His well-known discussions with the French physicist Sadi Carnot, founder of thermodynamics, may have stimulated Carnot in his reflexions on heat engines and thermodynamic efficiency.".
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